Anne, if you want a 28mm tire that weighs a bit less than the RP, try the Challenge Parigi-Roubaix. On my digital scale there was a bit of variance between my tires, but they came in between 265 and 280g each. My RPs, by contrast, were about 320g (despite the official label of 290g).
In my experience, the Challenge roll much faster than the RPs and JBs. Although the sidewall stamp says to inflate to 100-130, I've run mine at 85-90 with no problems whatsoever. On May 27, 12:35 pm, William <tapebu...@gmail.com> wrote: > If a Roly Poly is 27.79mm in diameter, and if a Jack Brown is 33.333mm > in diameter, that's a difference of 5.54mm or so. With a head tube > angle of 73 degrees, that means you'll be reducing your trail by > 1.69mm > > I think that should make the decision obvious. > > One reason? Bah! More like 1.69 reasons > > OK, tongue in cheek episode concludes. > > On May 27, 12:16 pm, Steve Palincsar <palin...@his.com> wrote: > > > > > On Thu, 2010-05-27 at 11:59 -0700, Anne Paulson wrote: > > > When I got my Roadeo, it had Jack Browns on it. I thought, hmm, this > > > is a gofast bike, I'll mount 28mm tires instead. So I bought some Roly > > > Polys. I just took off the Jack Browns (used maybe 100 miles) and was > > > about to put on the Roly Polys, but I thought I'd weigh the two tires > > > first. The Jack Brown I weighed was 4 and 5.5 grams heavier than the > > > two Roly Polys. > > > > Wait just one gol durned minute! Why am I changing tires to save four > > > or five grams? The tubes won't save any weight, 'cause they're the > > > same tubes. Is the rolling resistance any different? Should I just put > > > the Jack Browns back on? > > > Can you think of one reason why you shouldn't? -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bu...@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
